[OpenLayers-Users] Handling double click

Mon Jun 9 14:20:37 EDT 2008

Yes. I have the problem even though I always activate the click handler 
last.

As always, the actual code is deep within a lot of unrelated code.

I have constructed the following example to illustrate my point.
I would expect that "doubleclick" and "click" would override the 
draghandler, but it does not.

<html>
<head>
<script type="text/javascript" 
src="http://openlayers.org/api/OpenLayers.js"></script>
</head>
<body onload="loadmap();">
<script type="text/javascript">

function log(v)
{
    document.getElementById('eventlog').innerHTML += v + '<br />';
}

function loadmap()
{
    //basic setup
    var map = new OpenLayers.Map('map');
    var wms = new 
OpenLayers.Layer.WMS("http://labs.metacarta.com/wms/vmap0", 
{'layers':'basic'} );
    map.addLayer(wms);

    //Create handlers
    var dblclick = new OpenLayers.Handler.Click(this, {dblclick: 
function() { log('double'); }, click: function() {log('click');} }, 
{single: true, 'double': true, stopSingle: true, stopDouble: true});
    var draghandler = new OpenLayers.Handler.Box(this, {done: function() 
{this, log('draghandler');}} );

    //Fix up the missing map reference
    draghandler.setMap(map);
    dblclick.setMap(map);

    //Activate in correct order
    draghandler.activate();
    dblclick.activate();
}
</script>

<div style="width:400px; height:200px; border: 1px blue solid;" 
id="map"></div>
<div id="eventlog"></div>
</body>
</html>

Regards, Kenneth Skovhede, GEOGRAF A/S

Eric Lemoine skrev:
> On Mon, Jun 9, 2008 at 3:02 PM, Kenneth Skovhede, GEOGRAF A/S
> <ks at geograf.dk> wrote:
>   
>> Hi Eric.
>>
>> (I think my "DoubleClick" is an old version of the "Click" handler).
>>
>> I have now figured out the problem.
>> I have a DragHandler registered.
>> That means the "mousedown" / "mouseup" events are triggered.
>> Since the "mouseup" is correctly handled, the "click" is never fired, and
>> neither is "dblclick".
>>
>> Do you have any suggestion on how to deal with this problem?
>>     
>
> Do you still have the problem if you make sure the click handler is
> activated after the drag handler?
>
> Can you share your code so that we can reproduce?
>
> --
> Eric
>   
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